A tooth structure for a crusher

Abstract

The utility model relates to a crusher technical field, concretely is a tooth structure of crusher, including the multiple crushing rollers of interval arrangement, install the multiple toothed plates on the circumference surface of crushing roller, along the length direction of crushing roller, the multiple rows of crushing tooth groups fixed on the toothed plate equidistance, any group crushing tooth group is the multiple crushing teeth of equiangular arrangement with the axle center of crushing roller axle as center, the crushing tooth group on two crushing rollers is staggered arrangement, its characterized in that: the wear -resisting tooth head is set up on the crushing tooth, the wear -resisting tooth head extends from the tooth top of crushing tooth to the one side of tooth edge, the strength and wear resistance of wear -resisting tooth head are all greater than crushing tooth, the utility model can effectively strengthen the strength and wear resistance of tooth edge, reduce the frequency of crusher shutdown maintenance and the replacement of crushing tooth, guarantee the crushing efficiency of crusher.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, specifically to a crusher tooth structure. Background Technology

[0002] As the core equipment of industrial and mining crushing plants, roller crushers are suitable for crushing various ores. The toothed plate is the main component of the crusher, and the crushing teeth, as the main crushing structure of the toothed plate, are mostly made of cast steel. The main place of wear and damage is the tooth tip. Therefore, during the crushing process, it is necessary to stop the machine regularly and irregularly for maintenance and replacement of the crushing teeth, which seriously affects the crushing efficiency of the crusher. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned shortcomings by providing a tooth structure for a crusher that effectively enhances the strength and wear resistance of the tooth cutting edges, reduces the frequency of crusher downtime for maintenance and tooth replacement, and ensures the crushing efficiency of the crusher.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A crusher tooth structure includes multiple crushing rollers spaced apart, multiple tooth plates mounted on the circumferential surface of the crushing rollers, and multiple rows of crushing tooth groups equidistantly fixed on the tooth plates along the length direction of the crushing rollers. Each crushing tooth group consists of multiple crushing teeth arranged at equal angles with the axis of the crushing roller shaft as the center. The crushing tooth groups on two crushing rollers are staggered. The crushing teeth are characterized by having wear-resistant tooth tips that extend from the tooth tip to one side of the tooth cutting edge. The strength and wear resistance of the wear-resistant tooth tips are greater than those of the crushing teeth.

[0006] Furthermore, along the rotation direction of the crushing roller shaft, the front side of the crushing tooth is a straight surface and the rear side is an inclined surface. The wear-resistant tooth extends from the tip of the crushing tooth to one side of the straight surface, and the area of ​​the straight surface is smaller than the area of ​​the inclined surface.

[0007] Furthermore, the wear-resistant tooth head is made of wear-resistant material, and the crushing tooth is cast from cast steel.

[0008] Furthermore, the wear-resistant tooth head and the crushing tooth are cast together.

[0009] Furthermore, a recess communicating with the top is provided on one side of the crushing tooth; the wear-resistant tooth head includes a crushing part disposed in the recess, an embedded part connected to the crushing part, the embedded part extending into the interior of the crushing tooth, the top of the crushing part being flush with the tooth tip of the crushing tooth, and the side of the crushing part being flush with the side of the crushing tooth.

[0010] Furthermore, the maximum cross-sectional area of ​​the pre-embedded part is greater than the cross-sectional area at the connection between the broken part and the pre-embedded part.

[0011] The beneficial effects of this utility model are:

[0012] In practical applications, by setting wear-resistant tooth heads on the cast steel crushing teeth, with the wear-resistant tooth heads extending from the tip of the crushing teeth to one side of the cutting edge, the strength and wear resistance of the wear-resistant tooth heads are greater than those of the crushing teeth. This allows the crushing teeth to crush materials through the wear-resistant tooth heads, enhancing the strength and wear resistance of the cutting edge, extending the service life of the crushing teeth, and thus reducing the frequency of crusher downtime for maintenance and replacement. The crushing teeth can be connected to the tooth plate via threaded bolts at the bottom or by welding. This invention effectively strengthens the strength and wear resistance of the cutting edge, reduces the frequency of crusher downtime for maintenance and replacement, and ensures the crushing efficiency of the crusher. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a top view of the present invention;

[0015] Figure 3 yes Figure 2 Cross-sectional view at point AA;

[0016] Reference numerals: 1. Crushing tooth; 11. Straight surface; 12. Inclined surface; 13. Arc-shaped surface; 2. Wear-resistant tooth head; 21. Embedded part; 22. Crushing part. Detailed Implementation

[0017] like Figure 1 , Figure 2 and Figure 3 As shown, a crusher tooth structure includes multiple crushing rollers spaced apart, multiple tooth plates mounted on the circumferential surface of the crushing rollers, and multiple rows of crushing tooth groups equidistantly fixed on the tooth plates along the length direction of the crushing rollers. Each crushing tooth group consists of multiple crushing teeth 1 arranged at equal angles with the axis of the crushing roller shaft as the center. Each crushing tooth group has at least four teeth. The crushing tooth groups on two crushing rollers are staggered. The crushing tooth 1 is characterized by having a wear-resistant tooth head 2, which extends from the tooth tip of the crushing tooth 1 to one side of the tooth edge. The strength and wear resistance of the wear-resistant tooth head 2 are both greater than those of the crushing tooth 1.

[0018] The invention comprises at least two spaced-apart crushing rollers, and at least four crushing teeth 1 in any set of crushing teeth. Wear-resistant tooth heads 2 are provided on the cast steel crushing teeth 1, extending from the tip of the crushing tooth 1 to one side of the cutting edge. The strength and wear resistance of the wear-resistant tooth heads 2 are greater than those of the crushing teeth 1, allowing the crushing teeth 1 to crush materials through the wear-resistant tooth heads 2. This enhances the strength and wear resistance of the cutting edge, extends the service life of the crushing teeth 1, and reduces the frequency of crusher downtime for maintenance and replacement of the crushing teeth 1. The crushing teeth 1 can be connected to the tooth plate via threaded bolts at the bottom, or by welding, or by integral casting with the tooth plate. This invention effectively strengthens the strength and wear resistance of the cutting edge, reduces the frequency of crusher downtime for maintenance and replacement of the crushing teeth 1, and ensures the crushing efficiency of the crusher.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, along the rotation direction of the crushing roller shaft, the front side of the crushing tooth 1 is a straight surface 11, and the rear side is an inclined surface 12. The wear-resistant tooth head 2 extends from the tooth tip of the crushing tooth 1 to one side of the straight surface 11. The area of ​​the straight surface 11 is smaller than the area of ​​the inclined surface 12. In this embodiment, when the two sides of the crushing tooth 1 are a straight surface 11 and an inclined surface 12 respectively, the wear-resistant tooth head 2 on the straight surface 11 can more easily crush the material as the crushing roller rotates.

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the wear-resistant tooth head 2 is made of wear-resistant material, and the crushing tooth 1 is cast steel. In this embodiment, the strength and wear resistance of the wear-resistant material are superior to those of cast steel. The wear-resistant material can be tungsten carbide. The wear-resistant tooth head 2 made of wear-resistant materials such as tungsten carbide can effectively improve the overall strength and wear resistance of the crushing tooth 1, making the service life of the crushing tooth 1 longer and eliminating the need for regular and irregular downtime maintenance and replacement.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the wear-resistant tooth 2 and the crushing tooth 1 are cast together. In this embodiment, during the processing of the crushing tooth 1, the formed wear-resistant tooth 2 is first placed in the casting mold of the cast steel part, and then liquid steel is poured into the casting mold of the cast steel part. After cooling, shaping and demolding, the crushing tooth 1 can be made.

[0022] like Figure 1 , Figure 2 and Figure 3As shown, a recess connecting the top is provided on one side of the crushing tooth 1; the wear-resistant tooth head 2 includes a crushing part 22 disposed in the recess and a pre-embedded part 21 connected to the crushing part 22. The pre-embedded part 21 extends into the interior of the crushing tooth 1. The top of the crushing part 22 is flush with the tooth tip of the crushing tooth 1, and the side of the crushing part 22 is flush with the side of the crushing tooth 1. In this embodiment, by pre-embedding the pre-embedded part 21 into the interior of the crushing tooth 1, the connection between the wear-resistant tooth head 2 and the crushing tooth 1 is made more robust and reliable.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, the maximum cross-sectional area of ​​the pre-embedded part 21 is greater than the cross-sectional area of ​​the connection between the crushing part 22 and the pre-embedded part 21. In this embodiment, when the maximum cross-sectional area of ​​the pre-embedded part 21 is greater than the cross-sectional area of ​​the connection between the crushing part 22 and the pre-embedded part 21, the wear-resistant tooth 2 is less likely to loosen during the crushing process.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the tooth root of the crushing tooth 1 is an arc-shaped surface 13. In this embodiment, when the tooth root of the crushing tooth 1 is an arc-shaped surface 13, the contact area between the crushing tooth 1 and the tooth plate is larger, the overall strength of the tooth plate is better, and the threaded hole for bolting the tooth plate is on the arc-shaped surface 13.

[0025] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by this utility model.

Claims

1. A tooth structure for a crusher, comprising multiple crushing rollers spaced apart, multiple toothed plates mounted on the circumferential surface of the crushing rollers, and multiple rows of crushing tooth groups equidistantly fixed on the toothed plates along the length of the crushing rollers, wherein each set of crushing tooth groups consists of multiple crushing teeth (1) arranged at equal angles with the axis of the crushing roller shaft as the center, and the crushing tooth groups on two crushing rollers are staggered, characterized in that: The crushing tooth (1) is provided with a wear-resistant tooth head (2), which extends from the tooth tip of the crushing tooth (1) to one side of the tooth edge. The strength and wear resistance of the wear-resistant tooth head (2) are greater than those of the crushing tooth (1).

2. The tooth structure of a crusher according to claim 1, characterized in that, Along the rotation direction of the crushing roller shaft, the front side of the crushing tooth (1) is a straight surface (11) and the rear side is an inclined surface (12). The wear-resistant tooth head (2) extends from the tooth tip of the crushing tooth (1) to one side of the straight surface (11). The area of ​​the straight surface (11) is smaller than the area of ​​the inclined surface (12).

3. The tooth structure of a crusher according to claim 1, characterized in that, The wear-resistant tooth (2) is made of wear-resistant material, and the breaking tooth (1) is cast steel.

4. The tooth structure of a crusher according to claim 3, characterized in that, The wear-resistant tooth (2) and the crushing tooth (1) are cast together.

5. The tooth structure of a crusher according to claim 1, characterized in that, The crushing tooth (1) has a recess on one side that connects to the top; the wear-resistant tooth head (2) includes a crushing part (22) disposed in the recess and a pre-embedded part (21) connected to the crushing part (22). The pre-embedded part (21) extends into the interior of the crushing tooth (1). The top of the crushing part (22) is flush with the tooth tip of the crushing tooth (1), and the side of the crushing part (22) is flush with the side of the crushing tooth (1).

6. The tooth structure of a crusher according to claim 5, characterized in that, The maximum cross-sectional area of ​​the pre-embedded part (21) is greater than the cross-sectional area at the connection between the broken part (22) and the pre-embedded part (21).

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